Tax deductions you might be overlooking in your 2026 return

As the 2026 tax season approaches, it's crucial to review your expenses and take advantage of all available deductions to minimize your tax liability. While many taxpayers are familiar with common deductions such as mortgage interest and charitable donations, there are several lesser-known deductions worth exploring.

Deductions you may have missed

1. Donations to Non-Profit Organizations: If you donated to qualified non-profit organizations in 2025, you may be eligible to deduct up to 80% of the first €250, with a maximum deduction of €400. However, if you have been consistently donating to the same organization over three years, the deduction limit increases to 45%.

2. Legal Defense Costs: If you've faced employment disputes or legal battles with your employer, you can deduct legal fees up to €300 as a business expense. Be sure to retain receipts and documentation to support your claim.

3. Trade Union Dues: Membership fees to professional associations and trade unions are tax-deductible, capped at €500. This includes dues paid to various industry organizations and guilds.

4. Medical Expenses: While not a national deduction, some regional governments, like the Valencia, Canary Islands, and Cantabria regions, allow taxpayers to deduct certain medical expenses, including dental care, up to 30% of the total cost.

5. Childcare Expenses and Maternity Benefits: Working parents with children under three can claim a €1,200 maternity benefit, while also deducting up to €1,000 in childcare costs. If you haven't already claimed these expenses throughout the year, you can still do so when filing your return.

Remember to carefully review these potential deductions and retain all relevant documentation to ensure a smooth filing process. The deadline for submitting your 2026 tax return is June 30th, so take advantage of these opportunities to reduce your tax burden.